Step-up case



FIG. 1 is a perspective view of a step-up case, showing my new design.

FIG. 2 is a front side view.

FIG. 3 is a back side view.

FIG. 4 is a left side view.

FIG. 5 is a right side view.

FIG. 6 is a top view.

FIG. 7 is a bottom view.

FIG. 8 is a perspective view of a second embodiment of the step-up case.

FIG. 9 is a front side view.

FIG. 10 is a back side view.

FIG. 11 is a right side view.

FIG. 12 is a left side view.

FIG. 13 is a top view; and,

FIG. 14 is a bottom view. 

We claim the ornamental design for a step-up case, as shown and described. 